| /* Software floating-point emulation: comparison. |
| Copyright (C) 1997-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Richard Henderson (rth@cygnus.com) and |
| Jakub Jelinek (jj@ultra.linux.cz). |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include "local-soft-fp.h" |
| |
| static long |
| internal_compare (long al, long ah, long bl, long bh) |
| { |
| FP_DECL_EX; |
| FP_DECL_Q(A); FP_DECL_Q(B); |
| long r; |
| |
| FP_UNPACK_RAW_Q(A, a); |
| FP_UNPACK_RAW_Q(B, b); |
| FP_CMP_Q (r, A, B, 2); |
| |
| /* Relative comparisons signal invalid operation if either operand is NaN. */ |
| if (r == 2) |
| { |
| FP_SET_EXCEPTION(FP_EX_INVALID); |
| FP_HANDLE_EXCEPTIONS; |
| } |
| |
| return r; |
| } |
| |
| long |
| _OtsLssX (long al, long ah, long bl, long bh) |
| { |
| long r = internal_compare (al, ah, bl, bh); |
| if (r == 2) |
| return -1; |
| else |
| return r < 0; |
| } |
| |
| long |
| _OtsLeqX (long al, long ah, long bl, long bh) |
| { |
| long r = internal_compare (al, ah, bl, bh); |
| if (r == 2) |
| return -1; |
| else |
| return r <= 0; |
| } |
| |
| long |
| _OtsGtrX (long al, long ah, long bl, long bh) |
| { |
| long r = internal_compare (al, ah, bl, bh); |
| if (r == 2) |
| return -1; |
| else |
| return r > 0; |
| } |
| |
| long |
| _OtsGeqX (long al, long ah, long bl, long bh) |
| { |
| long r = internal_compare (al, ah, bl, bh); |
| if (r == 2) |
| return -1; |
| else |
| return r >= 0; |
| } |